31165134113 has 12 divisors (see below), whose sum is σ = 33702485460. Its totient is φ = 28782178656.

The previous prime is 31165134107. The next prime is 31165134127. The reversal of 31165134113 is 31143156113.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25302628624 + 5862505489 = 159068^2 + 76567^2 .

It is not a de Polignac number, because 31165134113 - 2¹⁴ = 31165117729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31165134103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000406 + ... + 1031087.

It is an arithmetic number, because the mean of its divisors is an integer number (2808540455).

Almost surely, 2^31165134113 is an apocalyptic number.

It is an amenable number.

31165134113 is a deficient number, since it is larger than the sum of its proper divisors (2537351347).

31165134113 is a wasteful number, since it uses less digits than its factorization.

31165134113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031568 (or 2031545 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The spelling of 31165134113 in words is "thirty-one billion, one hundred sixty-five million, one hundred thirty-four thousand, one hundred thirteen".